Improvement in machines for cutting and kerfing paper for boxes



Z Shets-ShetL H. Rf. HEYL.- MACHINES FOR CUTTING AND KE-RIFING PAPER FOR BOXES. No.175,458 Patented March 23,1876.

@muuu-lum WITNEssE/s ew-i INVENTOR- By v .dttornys N PETERS, PHOTO.LITHOGRAPHERy WASHINGTON. D C.

2 Sheets-Sheet 2,

, H. R. HEYL. MACHINES Fon CUTTING ANDKERFING PAPER Fon BOXES. No.175,458.

Patented March Z8, 1876.

WITNESSES .UNITED STATES Ali-afriinv'r OFFICE.

HENRY R. HEYL, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO THE NOVELTY PAPER BOX COMPANY, OF SAME PLAGE.

IMPROVEMENT IN MACHINES FOR CUTTING ANDYKERFING PAPERTOR BOXS.

'Specification forming part of Letters Patent No. 175,458., dated March 23, 1876 application iled May 23, 1874. v

To all who-m it may concern:

Be it known that I, HENRY R. HEYL, of the city and county of Philadelphia, in the State of Pennsylvanianhave inventedva new and useful Machine for Cutting and Kerting Paper and Pasteboard for Boxes, of which the following is a specification The nature and purpose of the invention are to combine in one machine the necessary devices for severing` a sheet of pasteboard into smaller pieces adapted to orm the body of a paper box, and at the same time to make the necessary kerfs in these pieces of pasteboard at the lines where they are to be bent into box form, the kerfsl referred to being an improvement on the usual method of scoring employed in the manufacture of all other pasteboard boxes, except those known as H. It. Heyls patent*wire-fastened boxes, and made by improved machinery, for which patents have also been granted to the same inventor. The object of thus kerlng the board is to provide a suitable substitute for the ordinary score, so that the board can be covered with its covering-paper in the sheet, and afterward bent into box form without marring the corner outside. To this end the board is thinned from the inside of the box bya at saw-kerf about one-sixteenth of an inch in width, and just deep enough to permit the board to be bent at right angles without straining the cover-paper suiciently to part it along the corners of the box.

.In the accompanying drawings, Figure is a rear view of a machine illustrating my invention. Fig. 2 is a plan of the same, partly in section. Fig. 3 is a side elevation thereof. Fig. Itis a vertical section on the line 4 4, Figs. l and 2. Fig. 5 is a side elevation ot' the saw-stock. Fig. 6 is a rear View of the same.

By reference to the drawings it will be seen that I employ an adjuster, A, to bring the entering edge ot the pasteboard parallel with the first pair of feed-rollers, B, before entering. The board is then pushed between the feed-rollers and carried into the machine. Immediately after the first feed-rollers is a series of circular saws, l, and-a cylinder, D,between which the sheet of paste-board passes, and receives the requisite number of kert's in its surface; thence it is taken up by a second pair of feed-rollers, E, and carried forward and received between two series of circular cutters,

F, which sever the sheets into strips of any desired width. Then by readjusting the saws and cutters, and passing these strips again through the machine at right angles to their long sides. they will be again kerfed and severed int-o box-blanks of the required size.

It is obvious that in order to construct a square box the blank must be trimmed and scored or kerfed in perfectly rectangular shape, and therefore in cutting the pasteboardthe second time it is important that it should enter the machine accurately at right angles to the r'st cut sides. Therefore, to have the pasteboard properly adjusted before it is pushed into the machine, and to avoid delay in rapid feeding, for quick handling is all-important in saving cost of manufacture, I employ the device A to direct the pasteboard as it enters the machine. The series of arms l 1 placed at short intervals on the rock-shaft 2 are so set that the toes 3 3 stand in line with each other,`and parallel with the feed-rollers and cutter-shafts of the machine. These toes project above the table high enough to stop the sheet of pasteboard as it is pushed forward to enter the machine. The Weighted lever 4 pro` jecting from the rock-shaft gives resistance enough to the toes to enable them to keep back the pasteboard ,from entering the` machine until its edge is fairly against them throughout its whole length. Then by a firmer push at the hands of the operator the resistance of the toes is overcome, and they givev way and pass into the grooves 5 in the feedrollers B, and the paste-board being caught between the feed-rollers is carried squarely into the machine.

It will be seen from the position of the rockraft 2 that the toes 3 3 in being pushed forward describe au arc, which soon carries them below the plane ot'- motion, which the pasteboard is forced to take, and will release the edge of the pasteboard, and remain in contact with its under side until the whole sheet has passed over them, when they will immediately return to their firstV position to direct the entry of other sheets, which may follow the first as rapidly as the operator can handle them, and may be within an inch ot' each other, it' he can t'eed them so fast. rIhus, by this simple mechanism, very litt-le care on the part ofthe operator is required, for it is next to impossible to feed a sheet otherwise than squarely.

The only other part of the machine which I consider novel is the device for kerng the pasteboard, \vhich consists of a series ot' independent eircular saws, C, adjustable4 in relation to the face lof' a revolving cylinder, D,

directly under them, above which the sheets of pasteboard must pass, and also adjustable sidewise, as required, by the varying dimensions ot' different boxes. Each saw is set in an independent stock, H, having its pulleytighteningsheave I for taking up the slack of the belt, a bearing-bracket, J, with set-screw K, and adjusting-screw L, and an adjustable guard, M. These saw-stocks are set upon a beam, N, having a planed face corresponding in shape to that part of' the saw-stock which rests against it, and having throughout its length a slot, n, to admit the heads ot' the bolts O that secure the saw-stock to it at any point along its face. By using the adjustingscrew L and the. set-screw K each saw may be set to cut to any desired depth. The guard M is placed close by the side of each saw, and serves tokeep the pasteboard down solidly upon the revolving cylinder D, so that the saw cannot tear up and cut entirely through the pasteboard. The spring Q serves to give the guard sulleient pressure upon the pasteboard, and also admits of the passage of inequalities in the board, while the saw remains rm, and cuts always Within a xed depthY from the cylinder D. The screw R serves to prevent the guard M from touching and wearing upon the cylinder. The driving-drum Gr gives motion to all the saws in use at one time through narrow or round belts g connecting` it with each saw.

By reference to` Fig. 3 it will be seen that the two pairs of feed-rollers B E, the cylinder D, and the cuttershafts S are all geared t0- gether, so that they run with uniform speed and in one direction, while the drum G, which drives the saws, is driven by a separate belt on a small pulley, P, in order that it may run at a much greater speed.

Ihe following is claimed as new- 1. The weighted adjuster A, constructed and operating as described, to adjust the edge of the sheet and recede by the continued pressure thereof, as explained.

2. The combination ot' the driving-drum G and the several adjustable saw-stocks H, each carrying a sheave, I, a driving-cord, g, a kerting-saw, (I, and a guard, M, placed close be-y side the saw for the purpose ot' keeping the paper or pasteboard rmly down upon the cylinder D, as explained.

3. The combination ot' the feed-rollers B,

. kerng-saws C, cylinder D, and cutters F for kerting and cutting paper or pasteboard, in the manner and for the purpose specied.

HENRY R. HEYL. Witnesses:

Oo'rAvrUs KNIGHT, WALTER ALLEN. 

